What is the CVSS score of CVE-2025-53820?

CVE-2025-53820 has a CVSS 3.1 base score of 6.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N. EPSS exploitation probability: 0.0%.

Which versions of PHP are affected by CVE-2025-53820?

Organizations using WeGIA should be aware of notable risk from CVE-2025-53820, a cross-site scripting vulnerability rated CVSS 6.5.. A patch is available.

Is there a public PoC exploit available for CVE-2025-53820?

Yes, a public proof-of-concept exploit is available for CVE-2025-53820. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2025-53820?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

PHP CVE-2025-53820

EUVD-2025-21391 MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2025-07-14 security-advisories@github.com

PHP XSS Wegia

6.5

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

6.5 MEDIUM

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

Patch available

Apr 16, 2026 - 05:29 EUVD

3.4.5

EUVD ID Assigned

Mar 16, 2026 - 09:43 euvd

EUVD-2025-21391

Analysis Generated

Mar 16, 2026 - 09:43 vuln.today

PoC Detected

Jul 15, 2025 - 20:15 vuln.today

Public exploit code

CVE Published

Jul 14, 2025 - 21:15 nvd

MEDIUM 6.5

DescriptionGitHub Advisory

WeGIA is an open source web manager with a focus on the Portuguese language and charitable institutions. A Reflected Cross-Site Scripting (XSS) vulnerability was identified in the index.php endpoint of the WeGIA application prior to version 3.4.5. This vulnerability allows attackers to inject malicious scripts in the erro parameter. Version 3.4.5 contains a patch for the issue.

Analysis

Technical ContextAI

Cross-site scripting (XSS) allows injection of client-side scripts into web pages viewed by other users due to insufficient output encoding.

RemediationAI

Encode all user-supplied output contextually (HTML, JS, URL). Implement Content Security Policy (CSP) headers. Use HTTPOnly and Secure cookie flags.

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CVE-2025-53820 vulnerability details – vuln.today

Back

PHP CVE-2025-53820

Severity by source

CVSS VectorGitHub Advisory

Lifecycle Timeline

DescriptionGitHub Advisory

Analysis

Technical ContextAI

RemediationAI

More from same product – last 7 days

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External POC / Exploit Code